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| − | All contributions to Wikipedia must be licensed by the author under the GNU Free Documentation License (GFDL).<ref>[http://en.wikipedia.org/wiki/Wikipedia:Copyrights Wikipedia Copyrights] accessed April 7, 2007</ref> While called "free", this license actually imposes burdensome obligations that interfere with the reuse of this material, even for teaching purposes. Authors always remain free to copy their own work, but cannot copy work that has been edited by others unless there is full compliance with the requirements of the 3,289-word GFDL. | + | All contributions to [[Wikipedia]] must be licensed by the author under the GNU Free Documentation License (GFDL).<ref>[http://en.wikipedia.org/wiki/Wikipedia:Copyrights Wikipedia Copyrights] accessed April 7, 2007</ref> While it guarantees a number of freedoms to reuse and modify the work, this license also imposes obligations that can make this reuse burdensome. Authors always remain free to copy their own work, but cannot copy work that has been edited by others unless they comply fully with the requirements of the 3,289-word GFDL. |
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| − | Here are a few of the complex requirements of the Wikipedia license:<ref>[http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License Text of the GNU Free Documentation License] accessed April 7, 2007</ref>
| + | The requirements of the Wikipedia license include:<ref>[http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License Text of the GNU Free Documentation License] accessed April 7, 2007</ref> |
| | * any derivative work must be licensed under the same conditions | | * any derivative work must be licensed under the same conditions |
| − | * there are 15 different conditions with respect to distributing modified copies
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| | * there must be attribution of principal authors | | * there must be attribution of principal authors |
| − | * there is no exception for teaching or other non-profit uses | + | * the lengthy text of the GFDL must usually be included |
| − | * there must be inclusion of a copy of the lengthy GFDL in many cases
| + | * 15 conditions with respect to distributing modified copies |
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| − | For Conservapedia's less restrictive and easier-to-use copyright, see [[Conservapedia:Copyright]].
| + | As with Conservapedia's terms, no special exceptions are made for teaching or other non-profit uses, but in both cases the [[fair use]] provisions of [[copyright law]] apply. |
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| | + | Conservapedia's copyright conditions are generally less restrictive and easier-to-use, but may be revoked "in very rare instances of self-defense" and do not allow for entire sections of the site to be copied or mirrored, unlike the GFDL. For details, see [[Conservapedia:Copyright]]. |
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| | == References == | | == References == |